atmosTrans: Broadband atmospheric transmissivity

In environmentalinformatics-marburg/reset: Remote Sensing-Based Evapotranspiration

Description

Broadband atmospheric transmissivity outlined in Hwang et al. (2013).

Usage

atmosTrans(Pa, Kt = 1, theta, W)

Arguments

Pa	numeric or Raster* object, atmospheric pressure (kPa).
Kt	numeric, turbidity coefficient, defaults to 1.0 for clean air (Allen et al., 1998).
theta	numeric or Raster* object, solar zenith angle over planar surfaces (radians).
W	numeric or Raster* object, water in the atmosphere (mm).

References

Allen RG, Pereira LS, Raes D, Smith M (1998) FAO Irrigation and Drainage Paper 56. Food and Agriculture Organization of the United Nations (FAO), Rome. Available online at https://appgeodb.nancy.inra.fr/biljou/pdf/Allen_FAO1998.pdf (accessed 2016-03-07).

Hwang K, Choi M, Lee SO, Seo JW (2013) Estimation of instantaneous and daily net radiation from MODIS data under clear sky conditions: a case study in East Asia. Irrigation Science 31, 1173-1184, doi:10.1007/s00271-012-0396-3.

environmentalinformatics-marburg/reset documentation built on May 16, 2019, 7:54 a.m.